278700838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1372

約数の個数: 32

約数和(自身を含む): 460615680

約数和(自身を除く): 181914842

約数列:

[1, 2, 13, 26, 67, 134, 139, 278, 871, 1151, 1742, 1807, 2302, 3614, 9313, 14963, 18626, 29926, 77117, 121069, 154234, 159989, 242138, 319978, 1002521, 2005042, 2079857, 4159714, 10719263, 21438526, 139350419, 278700838]

約数ペア:

[(1, 278700838), (2, 139350419), (13, 21438526), (26, 10719263), (67, 4159714), (134, 2079857), (139, 2005042), (278, 1002521), (871, 319978), (1151, 242138), (1742, 159989), (1807, 154234), (2302, 121069), (3614, 77117), (9313, 29926), (14963, 18626)]